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The world's best gem articles, published weekly.

Most Recent Articles

Apophyllite Value, Price, and Jewelry Information

Although not suitable for jewelry, apophyllite is a popular collector’s piece. Perhaps the whitest of all gems, cut, colorless specimens are so devoid of color they can appear almost silvery.

How to Estimate Rough Gemstone Value

Can you tell if gem rough is too expensive? Learn how to estimate rough gemstone value by considering your gem yield and the prices for your faceted pieces.

Ekanite Value, Price, and Jewelry Information

A relative newcomer to the world of gemstones, ekanite is rare and usually quite radioactive. When cabbed, some ekanites can display a star stone effect.

Some Pointers on Selling Gemstones

What does it take to succeed at cutting and selling gemstones? Jeff Graham offers newcomers some advice on treating faceting like a business.

Opal Simulants: How to Spot Imitation Opal

How can you be sure that a piece of opal for sale is genuine? Learn about the major types of opal simulants and how to distinguish them from the real deal.

Beryllonite Value, Price, and Jewelry Information

Difficult to facet and typically colorless, beryllonite is a rare collector’s gem. Some specimens can show a striking cat’s eye.

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